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	Các bình luận về:  (Sở Vĩnh Phúc 2022) Có bao nhiêu cặp số nguyên dương \(\left( {x,y} \right)\) thoả mãn \({3^{4{x^2} &#8211; 1}}\log \left( {4{x^2} + 4x + 2} \right) = {3^{y &#8211; 2x &#8211; 4}}\log \left( {2x + y &#8211; 1} \right)\) đồng thời \(x,y \le 2021\)	</title>
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